Agglomeration is used in cases where spray dried coffee powders need to be presented with bigger particles/agglomerates. An additional process stage is then used involving powder wetting, mechanical impact, after-drying and cooling. Control of wetting is carried out with water and/or saturated steam in an agglomeration chamber equipped with a rotating impacter. The agglomerates are then dried and cooled in the attached fluid bed, followed by sieving and packing. Fines and oversize fractions are reprocessed within the agglomeration plant.